The efficiency of service delivery in Nelson Mandela Bay Municipality, wards 22 and 36
- Xotyeni, Nompumelelo Caroline
- Authors: Xotyeni, Nompumelelo Caroline
- Date: 2017
- Subjects: Municipal services -- South Africa -- Nelson Mandela Bay Municipality , Municipal government -- South Africa -- Nelson Mandela Bay Municipality Local government -- South Africa -- Eastern Cape Comparative government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/13425 , vital:27184
- Description: The aim of this research is to evaluate the efficiency of service delivery in specific communities, namely Wards 22 and 36, in order to assess whether residents of those communities understand the service delivery process and whether there is enough communication and relationship within the councillors and residents. It is aimed at looking at the relationship between ward councillors and the residents of the community that they are given to represent. Service delivery is something that South Africa has been battling with for years. As much as there is progress within our country, a lot still needs to be done in order to satisfy the citizens of this country. That is where the purpose of this research thus come in, it looks at what the municipality has done to assist its people in matters that are urgent, such as housing, running water and electricity, to name a few. As stated above, this research looks at the implementation, or lack thereof of the municipality, on things that they had said they would attend to in the two wards, ward 22 and ward 36.
- Full Text:
- Date Issued: 2017
- Authors: Xotyeni, Nompumelelo Caroline
- Date: 2017
- Subjects: Municipal services -- South Africa -- Nelson Mandela Bay Municipality , Municipal government -- South Africa -- Nelson Mandela Bay Municipality Local government -- South Africa -- Eastern Cape Comparative government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/13425 , vital:27184
- Description: The aim of this research is to evaluate the efficiency of service delivery in specific communities, namely Wards 22 and 36, in order to assess whether residents of those communities understand the service delivery process and whether there is enough communication and relationship within the councillors and residents. It is aimed at looking at the relationship between ward councillors and the residents of the community that they are given to represent. Service delivery is something that South Africa has been battling with for years. As much as there is progress within our country, a lot still needs to be done in order to satisfy the citizens of this country. That is where the purpose of this research thus come in, it looks at what the municipality has done to assist its people in matters that are urgent, such as housing, running water and electricity, to name a few. As stated above, this research looks at the implementation, or lack thereof of the municipality, on things that they had said they would attend to in the two wards, ward 22 and ward 36.
- Full Text:
- Date Issued: 2017
Spatial and seasonal distribution of selected persistent organic pollutants and phenolic derivatives along the course of the Buffalo River in the Eastern Cape Province of South Africa
- Authors: Yahaya, Abdulrazaq
- Date: 2017
- Subjects: Organic water pollutants Water -- Purification -- Organic compounds removal
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/5939 , vital:29448
- Description:
Persistent organic pollutants (POPs) fall under a group of synthetic chemicals known for their persistence in environmental matrices such as soil and water, and are used in industrial, domestic and agricultural applications. Because of their volatility and lipophilicity, POPs can be transported far away from their point sources and bio-accumulate in food and in fatty tissues of humans and animals. In view of their toxicity and carcinogenicity some organic pollutants such as polychlorinated biphenyl (PCBs), organochlorine pesticides (OCPs) and phenolic derivatives (chlorophenol and nitrophenol) have been classified by United State Environmental Protection Agency (USEPA) and World Health Organization (WHO) as priority pollutants. The present work evaluated the distribution patterns of 19 polychlorinated biphenyls congeners, 17 organochlorine pesticides and selected phenolic derivatives (USEPA 11-priority pollutants) in the Buffalo River, in the Eastern Cape Province, South Africa between December 2015 and May 2016. The Liquid-liquid extraction technique was used for PCBs, OCPs and phenolic derivatives in the river water samples. Silica gel and florisil clean up were carried out for PCBs and OCPs samples respectively and analyzed with gas chromatography electron capture detector (GC/ECD). Phenolic compounds were derivatized and analyzed by gas chromatography mass spectrometer (GC/MS). Limits of detection (LOD), limit of quantitation (LOQ) and relative standard deviation (RSD) for the PCBs were 10 to 330 ng/L, 20 to 1,060 ng/L and 1.18 to 14.1 percent respectively. The LOD, LOQ and RSD for the OCPs were from 20 - 60 ng/L, 110 - 530 ng/L and 0.02 - 0.06 percent, while the corresponding values for the phenolic derivatives were 10 to 70 ng/L, 33 to 222 ng/L and 1.99 - 10.86 percent. In summer, the concentrations of PCBs, OCPs and phenolic derivatives ranged from
- Full Text:
- Date Issued: 2017
- Authors: Yahaya, Abdulrazaq
- Date: 2017
- Subjects: Organic water pollutants Water -- Purification -- Organic compounds removal
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/5939 , vital:29448
- Description:
Persistent organic pollutants (POPs) fall under a group of synthetic chemicals known for their persistence in environmental matrices such as soil and water, and are used in industrial, domestic and agricultural applications. Because of their volatility and lipophilicity, POPs can be transported far away from their point sources and bio-accumulate in food and in fatty tissues of humans and animals. In view of their toxicity and carcinogenicity some organic pollutants such as polychlorinated biphenyl (PCBs), organochlorine pesticides (OCPs) and phenolic derivatives (chlorophenol and nitrophenol) have been classified by United State Environmental Protection Agency (USEPA) and World Health Organization (WHO) as priority pollutants. The present work evaluated the distribution patterns of 19 polychlorinated biphenyls congeners, 17 organochlorine pesticides and selected phenolic derivatives (USEPA 11-priority pollutants) in the Buffalo River, in the Eastern Cape Province, South Africa between December 2015 and May 2016. The Liquid-liquid extraction technique was used for PCBs, OCPs and phenolic derivatives in the river water samples. Silica gel and florisil clean up were carried out for PCBs and OCPs samples respectively and analyzed with gas chromatography electron capture detector (GC/ECD). Phenolic compounds were derivatized and analyzed by gas chromatography mass spectrometer (GC/MS). Limits of detection (LOD), limit of quantitation (LOQ) and relative standard deviation (RSD) for the PCBs were 10 to 330 ng/L, 20 to 1,060 ng/L and 1.18 to 14.1 percent respectively. The LOD, LOQ and RSD for the OCPs were from 20 - 60 ng/L, 110 - 530 ng/L and 0.02 - 0.06 percent, while the corresponding values for the phenolic derivatives were 10 to 70 ng/L, 33 to 222 ng/L and 1.99 - 10.86 percent. In summer, the concentrations of PCBs, OCPs and phenolic derivatives ranged from
- Full Text:
- Date Issued: 2017
Species composition and seasonal population dynamics of free-living and engorged cattle ticks in three agro-ecological zones of the Eastern Cape Province, South Africa
- Authors: Yawa, Mandla
- Date: 2017
- Subjects: Ticks Boophilus microplus
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/9067 , vital:34224
- Description: This study was conducted to determine species composition and seasonal population dynamics of free-living and engorged cattle ticks in three agro-ecological zones (Bedford dry grassland, Kowie thicket and Bisho thornveld) of the Eastern Cape Province, South Africa. The occurrence of ticks on cattle was studied monthly from April 2016 and March 2017. Tick collections were performed on 360 selected cattle in each agro-ecological zones. During tick collections, 10 randomly selected cattle were sampled at each locality and more attention was given to African blue tick and the presence of Asian blue tick. A half body tick collection was performed from cattle and visible ticks were collected by means of fine-forceps after the animals had been restrained. Body regions that were examined includes the ear, head, neck, chest, abdomen, flank, front and hind leg and feet, tail, and peri-anal region. At each locality, six replicate drags of 100 m, approximately 50 m apart, were performed to collect ticks from vegetation. All ticks collected per cattle and from vegetation were stored in labelled sample tubes containing 70percent ethanol, subsequently counted and identified to genus and species level using a standard stereomicroscope. A total of 31425 ticks belonging to ten species were collected during the study. Rhipicephalus (Boophilus) decoloratus, was the most observed tick species (32.50percent), all other ticks like R. evertsi evertsi (18.84percent), R. appendiculatus (17.26percent), A. hebraeum (16.27percent), R. simus (7.69percent) were also commonly collected. Ixodes pilosus (3.84percent), H. rufipes (3.46percent), R. follis (0.08percent) together with Haemaphysalis silacea (0.02percent) were sporadic infestation. Haemaphysalis elliptica (0.04percent) was only found on the vegetation. No H. rufipes was collected in the thicket vegetation. Agro-ecological zones differ significantly (P<0.05) in tick species and distribution. Significantly more R. (B.) decoloratus were collected in thicket during summer compared to thornveld and dry grassland regions (P<0.05). Free-living ticks were widely distributed across different seasons but with of R. (B.) decoloratus larvae were significantly higher (P<0.05) in thornveld region during the spring season. In conclusion, agro-ecological differences and seasonal variations had an influence on ticks abundance and distribution. From this study, it is of interest to note the absence of R. (B.) microplus, whose trend to invade new areas previously colonised by R. (B.) decoloratus has been observed in Africa. In conclusion, agro-ecological differences and seasonal variations had an influence on ticks abundance and distribution. The aforementioned absence of R. (B.) microplus in this study highlights the importance of further research as this tick invades new areas previously colonised by R. (B.) decoloratus in the continent.
- Full Text:
- Date Issued: 2017
- Authors: Yawa, Mandla
- Date: 2017
- Subjects: Ticks Boophilus microplus
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/9067 , vital:34224
- Description: This study was conducted to determine species composition and seasonal population dynamics of free-living and engorged cattle ticks in three agro-ecological zones (Bedford dry grassland, Kowie thicket and Bisho thornveld) of the Eastern Cape Province, South Africa. The occurrence of ticks on cattle was studied monthly from April 2016 and March 2017. Tick collections were performed on 360 selected cattle in each agro-ecological zones. During tick collections, 10 randomly selected cattle were sampled at each locality and more attention was given to African blue tick and the presence of Asian blue tick. A half body tick collection was performed from cattle and visible ticks were collected by means of fine-forceps after the animals had been restrained. Body regions that were examined includes the ear, head, neck, chest, abdomen, flank, front and hind leg and feet, tail, and peri-anal region. At each locality, six replicate drags of 100 m, approximately 50 m apart, were performed to collect ticks from vegetation. All ticks collected per cattle and from vegetation were stored in labelled sample tubes containing 70percent ethanol, subsequently counted and identified to genus and species level using a standard stereomicroscope. A total of 31425 ticks belonging to ten species were collected during the study. Rhipicephalus (Boophilus) decoloratus, was the most observed tick species (32.50percent), all other ticks like R. evertsi evertsi (18.84percent), R. appendiculatus (17.26percent), A. hebraeum (16.27percent), R. simus (7.69percent) were also commonly collected. Ixodes pilosus (3.84percent), H. rufipes (3.46percent), R. follis (0.08percent) together with Haemaphysalis silacea (0.02percent) were sporadic infestation. Haemaphysalis elliptica (0.04percent) was only found on the vegetation. No H. rufipes was collected in the thicket vegetation. Agro-ecological zones differ significantly (P<0.05) in tick species and distribution. Significantly more R. (B.) decoloratus were collected in thicket during summer compared to thornveld and dry grassland regions (P<0.05). Free-living ticks were widely distributed across different seasons but with of R. (B.) decoloratus larvae were significantly higher (P<0.05) in thornveld region during the spring season. In conclusion, agro-ecological differences and seasonal variations had an influence on ticks abundance and distribution. From this study, it is of interest to note the absence of R. (B.) microplus, whose trend to invade new areas previously colonised by R. (B.) decoloratus has been observed in Africa. In conclusion, agro-ecological differences and seasonal variations had an influence on ticks abundance and distribution. The aforementioned absence of R. (B.) microplus in this study highlights the importance of further research as this tick invades new areas previously colonised by R. (B.) decoloratus in the continent.
- Full Text:
- Date Issued: 2017
Exploring the use of participatory visual methods in teaching sexuality education within the HIV and AIDS education programme in selected Kenyan secondary schools
- Yego, Lily Jerotich, Opata, Violet, Sathorar, Heloise
- Authors: Yego, Lily Jerotich , Opata, Violet , Sathorar, Heloise
- Date: 2017
- Subjects: Sex instruction -- Kenya , Teaching -- Aids and devices AIDS (Disease) -- Study and teaching (Secondary) -- Kenya Sex instruction for children
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10948/13414 , vital:27183
- Description: The HIV and AIDS prevalence in Kenya is still high and remains a major health concern despite the Kenyan government’s initiatives to create awareness about the epidemic through inclusion of the HIV and AIDS programme in schools. This is because the provision of sexuality, HIV and AIDS education in schools is not effective. Teachers face various challenges in the effective delivery of the subject due to their discomfort related to these sensitive topics. Therefore, learners are left inadequately supported by the teachers. With an immense variety of conflicting information about sexuality availed to young people through the social media and also through their peers, young people are left at risk of exploring their sexualities with inadequate and wrong information, thus exposing them to HIV infections. Since schools have been identified as ideal sites for the effective delivery of sexuality, HIV and AIDS education, teachers are expected to teach the learners using a variety of pedagogical strategies in order to achieve efficacy in the delivery of this subject, hence the need to explore teaching styles that could provide a safe space for the effective delivery of sexuality, HIV and AIDS education. This study sought to explore teachers’ experiences of using participatory visual methods in teaching sexuality education within the HIV and AIDS education programme in selected Kenyan secondary schools, in order to understand how such methods could affect the teaching of Sexuality education. This study employed a phenomenological research design, interpretivist paradigm and a participatory methodology. Memory accounts, reflective journals and focus group discussions were used for data generation with nine secondary school teachers, from three purposively selected schools in Kenya. Vygotsky’s socio-cultural theory underpinned the study. The findings revealed that teachers are uncomfortable teaching sexuality education because of fear of leading learners astray, fear of victimization and sexualization, and fear of misleading and hurting learners because of lack of knowledge. This resulted in teachers feeling guilty due to ineffective delivery of Sexuality education. The findings also revealed that participatory visual methods were effective for use by the teachers and the learners in the classroom to navigate issues around sexuality, HIV and AIDS. This was because they are learner-centred, thus making learners producers of knowledge while at the same time encouraging optimism in teaching and learning. This study thus recommends pre-service teacher training on participatory methods of teaching. Educational institutions should also arrange for workshops to train in-service teachers on comprehensive sexuality, HIV and AIDS education and how to tackle it in their classrooms. Moreover, curriculum developers should make sexuality, HIV and AIDS education a compulsory subject to give it equal status with other examinable subjects, for it to be taken seriously. It is only through concerted efforts from everyone that Kenya can reach its target of Zero new HIV infections.
- Full Text:
- Date Issued: 2017
- Authors: Yego, Lily Jerotich , Opata, Violet , Sathorar, Heloise
- Date: 2017
- Subjects: Sex instruction -- Kenya , Teaching -- Aids and devices AIDS (Disease) -- Study and teaching (Secondary) -- Kenya Sex instruction for children
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10948/13414 , vital:27183
- Description: The HIV and AIDS prevalence in Kenya is still high and remains a major health concern despite the Kenyan government’s initiatives to create awareness about the epidemic through inclusion of the HIV and AIDS programme in schools. This is because the provision of sexuality, HIV and AIDS education in schools is not effective. Teachers face various challenges in the effective delivery of the subject due to their discomfort related to these sensitive topics. Therefore, learners are left inadequately supported by the teachers. With an immense variety of conflicting information about sexuality availed to young people through the social media and also through their peers, young people are left at risk of exploring their sexualities with inadequate and wrong information, thus exposing them to HIV infections. Since schools have been identified as ideal sites for the effective delivery of sexuality, HIV and AIDS education, teachers are expected to teach the learners using a variety of pedagogical strategies in order to achieve efficacy in the delivery of this subject, hence the need to explore teaching styles that could provide a safe space for the effective delivery of sexuality, HIV and AIDS education. This study sought to explore teachers’ experiences of using participatory visual methods in teaching sexuality education within the HIV and AIDS education programme in selected Kenyan secondary schools, in order to understand how such methods could affect the teaching of Sexuality education. This study employed a phenomenological research design, interpretivist paradigm and a participatory methodology. Memory accounts, reflective journals and focus group discussions were used for data generation with nine secondary school teachers, from three purposively selected schools in Kenya. Vygotsky’s socio-cultural theory underpinned the study. The findings revealed that teachers are uncomfortable teaching sexuality education because of fear of leading learners astray, fear of victimization and sexualization, and fear of misleading and hurting learners because of lack of knowledge. This resulted in teachers feeling guilty due to ineffective delivery of Sexuality education. The findings also revealed that participatory visual methods were effective for use by the teachers and the learners in the classroom to navigate issues around sexuality, HIV and AIDS. This was because they are learner-centred, thus making learners producers of knowledge while at the same time encouraging optimism in teaching and learning. This study thus recommends pre-service teacher training on participatory methods of teaching. Educational institutions should also arrange for workshops to train in-service teachers on comprehensive sexuality, HIV and AIDS education and how to tackle it in their classrooms. Moreover, curriculum developers should make sexuality, HIV and AIDS education a compulsory subject to give it equal status with other examinable subjects, for it to be taken seriously. It is only through concerted efforts from everyone that Kenya can reach its target of Zero new HIV infections.
- Full Text:
- Date Issued: 2017
Choice of market channels by smallholder vegetable farmers in King Sabata Dalindyebo Municipality in the Eastern Cape province of South Africa
- Authors: Yokwana, Aphelele Lucia
- Date: 2017
- Subjects: Vegetables -- Marketing Farms, Small -- South Africa -- Eastern Cape Vegetable trade -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MAgric
- Identifier: http://hdl.handle.net/10353/11906 , vital:39117
- Description: The study investigates the choice of market channels by smallholder vegetable farmers in King Sabatha Dalindyebo Municipality, in the Eastern Cape Province of South Africa. Vegetables as a group of horticultural crops are important for their contribution as an income support to a large proportion of the rural households. However, enhancing vegetable farmers to reach markets and actively engage in the markets is a key challenge influencing vegetable production in South Africa. The perishable nature of vegetables demands effective marketing channels. The main objective of the study was to investigate factors affecting vegetable farmers’ choice of market channels in King Sabata Dalindyebo Municipality in the Eastern Cape Province. The study adopted a multistage stratified sampling method. Multi-stage sampling was done in which the first stage involved selecting respondents from the different wards in the King Sabata Dalindyebo Municipality. This was done through stratification by separating vegetable smallholder farmers and homesteads within that area (different villages within the area). This was followed by employing quota sampling through the different households and smallholder farmers within those areas in order to determine households and smallholder farmers that are able to provide the needed information concerning the choice of market channels. By stratified random sampling based on village, project membership and smallholder farmers, a sample of 110 heads of households was chosen for the study in eight different wards of KSD. The sampling for this study was based on a large sampling technique of n ≥ 30 as there is no information regarding the population of the total number of homesteads and smallholder farmers that are under each traditional leader (chief) in these study sites. This sample comprises homesteads and smallholder farmers that took part in vegetable production. A structured questionnaire together with field observations and measurements were adopted for obtaining information from household respondents. Descriptive statistics (percentages, means, frequency tables and figures) and a Multinomial logistic regression model have been used to analyze the data. From the Multinomial logistic regression results, farming experience is positively related to choice of farm gate market channel at 1percent level of significance. The age of vegetable farmers was positively related to the choice of direct to consumer market channel at 5percent significance level. The level of education of the vegetable farmers was positively related to the choice of direct to consumer market channel at 5percent significance level. Moreover, the results also showed that the inputs used are positively related to the choice of farm-gate as well as direct to consumer market channels at 5percent significance level. Similarly, means of transportation used and choice of marketing channel of the vegetable farmers are positively related at 1percent significance level at the direct to consumer choice of market channel. Furthermore, access to extension services indicated a positive relationship to the choice of market channel amongst the smallholder vegetable farmers for the direct to consumer at 5percent level of significance which is insignificant for that of the farm-gate. There is therefore, need for strong extension support in assisting the farmers to diversify their production, provide market information thereby enhancing production and opening up channels for market accessibility. This is seen to enhance rural households’ livelihood outcomes in agricultural production thereby improving the choice of market channels by smallholder vegetable farmers and alleviating poverty and improving food security. More so, the government and research institutes need to organize workshops and extension programs in famer’ training for more efficiency in their vegetable production and marketing.
- Full Text:
- Date Issued: 2017
- Authors: Yokwana, Aphelele Lucia
- Date: 2017
- Subjects: Vegetables -- Marketing Farms, Small -- South Africa -- Eastern Cape Vegetable trade -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MAgric
- Identifier: http://hdl.handle.net/10353/11906 , vital:39117
- Description: The study investigates the choice of market channels by smallholder vegetable farmers in King Sabatha Dalindyebo Municipality, in the Eastern Cape Province of South Africa. Vegetables as a group of horticultural crops are important for their contribution as an income support to a large proportion of the rural households. However, enhancing vegetable farmers to reach markets and actively engage in the markets is a key challenge influencing vegetable production in South Africa. The perishable nature of vegetables demands effective marketing channels. The main objective of the study was to investigate factors affecting vegetable farmers’ choice of market channels in King Sabata Dalindyebo Municipality in the Eastern Cape Province. The study adopted a multistage stratified sampling method. Multi-stage sampling was done in which the first stage involved selecting respondents from the different wards in the King Sabata Dalindyebo Municipality. This was done through stratification by separating vegetable smallholder farmers and homesteads within that area (different villages within the area). This was followed by employing quota sampling through the different households and smallholder farmers within those areas in order to determine households and smallholder farmers that are able to provide the needed information concerning the choice of market channels. By stratified random sampling based on village, project membership and smallholder farmers, a sample of 110 heads of households was chosen for the study in eight different wards of KSD. The sampling for this study was based on a large sampling technique of n ≥ 30 as there is no information regarding the population of the total number of homesteads and smallholder farmers that are under each traditional leader (chief) in these study sites. This sample comprises homesteads and smallholder farmers that took part in vegetable production. A structured questionnaire together with field observations and measurements were adopted for obtaining information from household respondents. Descriptive statistics (percentages, means, frequency tables and figures) and a Multinomial logistic regression model have been used to analyze the data. From the Multinomial logistic regression results, farming experience is positively related to choice of farm gate market channel at 1percent level of significance. The age of vegetable farmers was positively related to the choice of direct to consumer market channel at 5percent significance level. The level of education of the vegetable farmers was positively related to the choice of direct to consumer market channel at 5percent significance level. Moreover, the results also showed that the inputs used are positively related to the choice of farm-gate as well as direct to consumer market channels at 5percent significance level. Similarly, means of transportation used and choice of marketing channel of the vegetable farmers are positively related at 1percent significance level at the direct to consumer choice of market channel. Furthermore, access to extension services indicated a positive relationship to the choice of market channel amongst the smallholder vegetable farmers for the direct to consumer at 5percent level of significance which is insignificant for that of the farm-gate. There is therefore, need for strong extension support in assisting the farmers to diversify their production, provide market information thereby enhancing production and opening up channels for market accessibility. This is seen to enhance rural households’ livelihood outcomes in agricultural production thereby improving the choice of market channels by smallholder vegetable farmers and alleviating poverty and improving food security. More so, the government and research institutes need to organize workshops and extension programs in famer’ training for more efficiency in their vegetable production and marketing.
- Full Text:
- Date Issued: 2017
Computational design of a smart and efficient control system for a residential air source heat pump water heater
- Authors: Yongoua Nana Joel
- Date: 2017
- Subjects: Heat pumps -- Specifications Water heaters Renewable energy sources
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/4582 , vital:28435
- Description: An air source heat pump (ASHP) water heater is a renewable and energy efficient hot water heating technology. ASHP water heaters are fast gaining maturity in the South African market and in Africa at large due to their low energy consumption (about 67 percent lower than conventional geysers), relatively low installation and operation cost, their environmental friendly nature and possibly the ease to retrofit with the old inefficient technologies. Furthermore, ASHP water heaters make use of some of the most recent advancement in refrigeration technologies enhancing their performance through a wide range of weather conditions. However, residential ASHP water heaters which come at the tail of a series of highly sophisticated models still harbour primitive control designs. One of such control system is the intermittent (on/off) control whereby the ASHP unit responds to a temperature differential threshold rather than instantaneous temperature fluctuations. Unfortunately, this control method contributes to a rapid deterioration of the compressor and other actuators due to high starting current during transient states and partial loading. Capacity control is a better alterative as it offers a more reliable system’s performance as well as a better protection for the system components. However, the drawbacks of implementing such a technology on residential ASHP water heaters is the initial purchasing cost. We use a systematic approach in this research to circumvent the purchasing cost and complete redesign hysteresis. The first step was centered around a hypothetical analysis of the performance of the heat exchangers in a bid to uncover the weakness during the operation of a residential ASHP water heater. It was observed that at ambient temperatures above 22°C notably during summer and winter afternoons, water only harnesses about 75 percent of the total heat rejected. Furthermore, the actuators keep doing work for about 15-20 minutes even after the heat transfer process has ceased completely. Following these observations, a sequential flow algorithm was developed aimed at matching the consumption point to weather variables like ambient temperature and secondly to most efficiently synchronize actuator components for a better energy management. This novel control method can save up to 58 percent of energy compared to the conventional on/off method during summer afternoons and averagely 20 percent during the rest of the day. It also has the merit to be cost effective as it barely requires no component retrofitting.
- Full Text:
- Date Issued: 2017
- Authors: Yongoua Nana Joel
- Date: 2017
- Subjects: Heat pumps -- Specifications Water heaters Renewable energy sources
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/4582 , vital:28435
- Description: An air source heat pump (ASHP) water heater is a renewable and energy efficient hot water heating technology. ASHP water heaters are fast gaining maturity in the South African market and in Africa at large due to their low energy consumption (about 67 percent lower than conventional geysers), relatively low installation and operation cost, their environmental friendly nature and possibly the ease to retrofit with the old inefficient technologies. Furthermore, ASHP water heaters make use of some of the most recent advancement in refrigeration technologies enhancing their performance through a wide range of weather conditions. However, residential ASHP water heaters which come at the tail of a series of highly sophisticated models still harbour primitive control designs. One of such control system is the intermittent (on/off) control whereby the ASHP unit responds to a temperature differential threshold rather than instantaneous temperature fluctuations. Unfortunately, this control method contributes to a rapid deterioration of the compressor and other actuators due to high starting current during transient states and partial loading. Capacity control is a better alterative as it offers a more reliable system’s performance as well as a better protection for the system components. However, the drawbacks of implementing such a technology on residential ASHP water heaters is the initial purchasing cost. We use a systematic approach in this research to circumvent the purchasing cost and complete redesign hysteresis. The first step was centered around a hypothetical analysis of the performance of the heat exchangers in a bid to uncover the weakness during the operation of a residential ASHP water heater. It was observed that at ambient temperatures above 22°C notably during summer and winter afternoons, water only harnesses about 75 percent of the total heat rejected. Furthermore, the actuators keep doing work for about 15-20 minutes even after the heat transfer process has ceased completely. Following these observations, a sequential flow algorithm was developed aimed at matching the consumption point to weather variables like ambient temperature and secondly to most efficiently synchronize actuator components for a better energy management. This novel control method can save up to 58 percent of energy compared to the conventional on/off method during summer afternoons and averagely 20 percent during the rest of the day. It also has the merit to be cost effective as it barely requires no component retrofitting.
- Full Text:
- Date Issued: 2017
Adaptation of the mathematics recovery programme to facilitate progression in the early arithmetic strategies of Grade 2 learners in Zambia
- Authors: Young, Catherine
- Date: 2017
- Subjects: Mathematics -- Study and teaching (Elementary) -- Zambia Arithmetic -- Study and teaching (Elementary) -- Zambia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/4977 , vital:20749
- Description: Research indicates that many children finish primary school in Southern Africa still reliant on inefficient counting strategies. This study extends the research of the South African Numeracy Chair project to early mathematics intervention with Grade 2 learners. It investigated the possible adaptation of the Mathematics Recovery programme to facilitate learner progression in early arithmetic strategies. This study aimed to investigate the possibility of adapting the Mathematics Recovery programme for use in a whole class setting, and to research the effectiveness of such an adapted programme. This study also aimed to investigate the extent of the phenomenon of unit counting and other early arithmetic strategies used in the early years in Zambia. This study was conducted from an emergent perspective. A review of the literature indicated that children who become stuck using unit counting face later mathematical difficulties, and that teacher over-emphasis on unit counting in the early years of schooling may be a contributing factor. This study used a qualitative design research methodology that consisted of a preparation phase, teaching experiment and retrospective analysis. The context of this teaching experiment was a seven week after-school intervention with a class of Grade 2 learners aged seven to eight in a rural Zambian primary school. Data collection and analysis focused on video recordings of a sample of 6 learners. The experimental teaching content focused on the Early Arithmetic Strategies aspect of the Mathematics Recovery programme. Although limited by time and research focus, this study found that all learners made some progress in early arithmetic strategies, and indicates that the Mathematics Recovery programme has potential for adaptation for early intervention in whole class teaching to address the mathematical education challenges in Zambia and beyond. This study also found that unit counting predominated in the sample learners, but that strategies were not yet entrenched, indicating this was a suitable age for early intervention. This study makes methodological contributions to a growing body of research into the adaptation of the Mathematics Recovery in Southern African contexts and suggests avenues for possible further research.
- Full Text:
- Date Issued: 2017
- Authors: Young, Catherine
- Date: 2017
- Subjects: Mathematics -- Study and teaching (Elementary) -- Zambia Arithmetic -- Study and teaching (Elementary) -- Zambia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/4977 , vital:20749
- Description: Research indicates that many children finish primary school in Southern Africa still reliant on inefficient counting strategies. This study extends the research of the South African Numeracy Chair project to early mathematics intervention with Grade 2 learners. It investigated the possible adaptation of the Mathematics Recovery programme to facilitate learner progression in early arithmetic strategies. This study aimed to investigate the possibility of adapting the Mathematics Recovery programme for use in a whole class setting, and to research the effectiveness of such an adapted programme. This study also aimed to investigate the extent of the phenomenon of unit counting and other early arithmetic strategies used in the early years in Zambia. This study was conducted from an emergent perspective. A review of the literature indicated that children who become stuck using unit counting face later mathematical difficulties, and that teacher over-emphasis on unit counting in the early years of schooling may be a contributing factor. This study used a qualitative design research methodology that consisted of a preparation phase, teaching experiment and retrospective analysis. The context of this teaching experiment was a seven week after-school intervention with a class of Grade 2 learners aged seven to eight in a rural Zambian primary school. Data collection and analysis focused on video recordings of a sample of 6 learners. The experimental teaching content focused on the Early Arithmetic Strategies aspect of the Mathematics Recovery programme. Although limited by time and research focus, this study found that all learners made some progress in early arithmetic strategies, and indicates that the Mathematics Recovery programme has potential for adaptation for early intervention in whole class teaching to address the mathematical education challenges in Zambia and beyond. This study also found that unit counting predominated in the sample learners, but that strategies were not yet entrenched, indicating this was a suitable age for early intervention. This study makes methodological contributions to a growing body of research into the adaptation of the Mathematics Recovery in Southern African contexts and suggests avenues for possible further research.
- Full Text:
- Date Issued: 2017
The role of African leadership values in achieving employee engagement in firms
- Authors: Yoyo, Vuyisa
- Date: 2017
- Subjects: Leadership -- Africa , Management -- Moral and ethical aspects Employee motivation Business ethics -- Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/13392 , vital:27181
- Description: Firms have been largely characterised by competition and this necessitates that organisations leverage on their own competitive advantage in order to stay relevant to their customers. This is applicable to organisations whether they sell products or render services. Employees become key in assisting organisations to ensure that they deliver quality services or products to these customers, as they are mostly the ones that liaise with these customers. Employee engagement becomes an important factor that needs to be understood together with the leadership values that can be utilised to increase employee engagement. Understanding the role of leadership values in achieving employee engagement is essential as this will assist management to practise and encourage the implementation of these values in their organisations. The aim of this study to assist organisations to improve employee engagement by investigating the leadership values that influence the increase in employee engagement. This study is specifically looking at investigating the role that African Values in Leadership (AVL), as measured by communalism, cooperativeness, selflessness and collectivism, play in the achievement of employee engagement in firms. An empirical study, consisting of a mail survey was conducted amongst 109 employees of the State Owned Enterprises (SOEs) in the Eastern Cape Province. The purpose of the study was to investigate the extent and leadership determinants of employee engagement in the SOEs. The key findings indicated that AVL played a vital role in achieving employee engagement. Important values that were found to be significant in increasing employee engagement were selflessness, collectivism and cooperativeness. Furthermore recommendations were made to management to ensure that they encourage employees to practise AVL and also lead by examples through modelling these values to foster employee engagement in SOEs.
- Full Text:
- Date Issued: 2017
- Authors: Yoyo, Vuyisa
- Date: 2017
- Subjects: Leadership -- Africa , Management -- Moral and ethical aspects Employee motivation Business ethics -- Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/13392 , vital:27181
- Description: Firms have been largely characterised by competition and this necessitates that organisations leverage on their own competitive advantage in order to stay relevant to their customers. This is applicable to organisations whether they sell products or render services. Employees become key in assisting organisations to ensure that they deliver quality services or products to these customers, as they are mostly the ones that liaise with these customers. Employee engagement becomes an important factor that needs to be understood together with the leadership values that can be utilised to increase employee engagement. Understanding the role of leadership values in achieving employee engagement is essential as this will assist management to practise and encourage the implementation of these values in their organisations. The aim of this study to assist organisations to improve employee engagement by investigating the leadership values that influence the increase in employee engagement. This study is specifically looking at investigating the role that African Values in Leadership (AVL), as measured by communalism, cooperativeness, selflessness and collectivism, play in the achievement of employee engagement in firms. An empirical study, consisting of a mail survey was conducted amongst 109 employees of the State Owned Enterprises (SOEs) in the Eastern Cape Province. The purpose of the study was to investigate the extent and leadership determinants of employee engagement in the SOEs. The key findings indicated that AVL played a vital role in achieving employee engagement. Important values that were found to be significant in increasing employee engagement were selflessness, collectivism and cooperativeness. Furthermore recommendations were made to management to ensure that they encourage employees to practise AVL and also lead by examples through modelling these values to foster employee engagement in SOEs.
- Full Text:
- Date Issued: 2017
Assessing the status of biological control as a management tool for suppression of invasive alien plants in South Africa
- Zachariades, Costas, Paterson, Iain D, Strathie, Lorraine W, Hill, Martin P, van Wilgen, Brian W
- Authors: Zachariades, Costas , Paterson, Iain D , Strathie, Lorraine W , Hill, Martin P , van Wilgen, Brian W
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/59762 , vital:27646 , https://doi.org/10.4102/abc.v47i2.2142
- Description: Biological control of invasive alien plant (IAP) species is the use of introduced, highly selective natural enemies (usually herbivorous arthropods or pathogens) to control plants. It has been used in 130 countries as a valuable tool for the control of IAP species, with a total of over 550 biological control agents having been released (Winston et al. 2014). The benefits of biological control to natural ecosystems are significant (Van Driesch et al. 2010), with some specific examples of threatened indigenous species being protected by the action of biological control agents (Barton et al. 2007; Meyer, Fourdrigniez & Taputuarai 2011). Detailed analyses of programmes on biological control of IAPs have also clearly indicated that the risks of non-target effects from biological control agents are minimal (Fowler, Syrett & Hill 2000; Funasaki et al. 1988; Moran & Hoffmann 2015; Paynter et al. 2004; Pemberton 2000; Suckling & Sforza 2014). Less than 1% of all the agents released have a negative impact on non-target plant populations, and those that do could have been predicted to do so, and would not be released today (Suckling & Sforza 2014).
- Full Text:
- Date Issued: 2017
- Authors: Zachariades, Costas , Paterson, Iain D , Strathie, Lorraine W , Hill, Martin P , van Wilgen, Brian W
- Date: 2017
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/59762 , vital:27646 , https://doi.org/10.4102/abc.v47i2.2142
- Description: Biological control of invasive alien plant (IAP) species is the use of introduced, highly selective natural enemies (usually herbivorous arthropods or pathogens) to control plants. It has been used in 130 countries as a valuable tool for the control of IAP species, with a total of over 550 biological control agents having been released (Winston et al. 2014). The benefits of biological control to natural ecosystems are significant (Van Driesch et al. 2010), with some specific examples of threatened indigenous species being protected by the action of biological control agents (Barton et al. 2007; Meyer, Fourdrigniez & Taputuarai 2011). Detailed analyses of programmes on biological control of IAPs have also clearly indicated that the risks of non-target effects from biological control agents are minimal (Fowler, Syrett & Hill 2000; Funasaki et al. 1988; Moran & Hoffmann 2015; Paynter et al. 2004; Pemberton 2000; Suckling & Sforza 2014). Less than 1% of all the agents released have a negative impact on non-target plant populations, and those that do could have been predicted to do so, and would not be released today (Suckling & Sforza 2014).
- Full Text:
- Date Issued: 2017
An experimental study of self-regulated learning with mathematically gifted pupils in Nigerian primary schools
- Authors: Zaram, Gyang Nyam
- Date: 2017
- Subjects: Mathematics -- Study and teaching (Elementary) -- Nigeria , Numeracy -- Study and teaching (Elementary) -- Nigeria Gifted children -- Education -- Curricula Gifted children -- Nigeria
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13381 , vital:27180
- Description: The purpose of this study was to determine whether gifted pupils can master an enriched advanced level curriculum in mathematics using self-regulated learning strategies. A mathematics curriculum for class five primary school learners in Nigeria was developed for this study. An empirical study was conducted on primary five pupils who were seen to be significantly gifted in mathematics. The study employed the quantitative method of research, that is, the true experimental research. The pre-test, post-test control group design was used. Sixty gifted pupils who participated in a mathematics enrichment programme (MEP) were assigned into two groups of the control group and experimental group with thirty pupils forming each group. The control group was exposed to direct teaching (DT) while the experimental group used self-regulated learning (SRL) strategies. Four teachers served as facilitators in the MEP. The teaching and learning activities were carried out at a higher cognitive level as opposed to the regular curriculum, ensuring that the contents of the MEP were enriched and accelerated. Pupils in both the experimental group and the control group were administered a pre-test, problem-solving exercises, and post-test. These pupils also completed an attitudinal questionnaire to provide feedback about the MEP. The empirical results show that gifted pupils in primary five are capable of self-regulating their own learning through self-monitoring, self-evaluation, and self-reinforcement. The empirical results also show that there is a significant relationship between self-regulated learning, gifted learners, and an enriched advanced level differentiated curriculum as a realistic alternative to the present regular curriculum for gifted pupils in the mainstream of education. The findings further show that the lack of differentiation of instruction, lack of facilities such as libraries, media centres, and support materials contributes to low achievement of gifted pupils. Furthermore, the findings show that pupils were challenged and motivated with the MEP to the extent that they were engaged to think divergently and applied their metacognitive skills in finding solutions to mathematical problems. Therefore, the findings of this study could have significant implications for the future direction of gifted primary school education as well as teacher education. This study has made a significant contribution to the existing body of knowledge for implementing an enriched advanced level curriculum using SRL strategies for mathematically gifted pupils in the mainstream of primary school education.
- Full Text:
- Date Issued: 2017
- Authors: Zaram, Gyang Nyam
- Date: 2017
- Subjects: Mathematics -- Study and teaching (Elementary) -- Nigeria , Numeracy -- Study and teaching (Elementary) -- Nigeria Gifted children -- Education -- Curricula Gifted children -- Nigeria
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13381 , vital:27180
- Description: The purpose of this study was to determine whether gifted pupils can master an enriched advanced level curriculum in mathematics using self-regulated learning strategies. A mathematics curriculum for class five primary school learners in Nigeria was developed for this study. An empirical study was conducted on primary five pupils who were seen to be significantly gifted in mathematics. The study employed the quantitative method of research, that is, the true experimental research. The pre-test, post-test control group design was used. Sixty gifted pupils who participated in a mathematics enrichment programme (MEP) were assigned into two groups of the control group and experimental group with thirty pupils forming each group. The control group was exposed to direct teaching (DT) while the experimental group used self-regulated learning (SRL) strategies. Four teachers served as facilitators in the MEP. The teaching and learning activities were carried out at a higher cognitive level as opposed to the regular curriculum, ensuring that the contents of the MEP were enriched and accelerated. Pupils in both the experimental group and the control group were administered a pre-test, problem-solving exercises, and post-test. These pupils also completed an attitudinal questionnaire to provide feedback about the MEP. The empirical results show that gifted pupils in primary five are capable of self-regulating their own learning through self-monitoring, self-evaluation, and self-reinforcement. The empirical results also show that there is a significant relationship between self-regulated learning, gifted learners, and an enriched advanced level differentiated curriculum as a realistic alternative to the present regular curriculum for gifted pupils in the mainstream of education. The findings further show that the lack of differentiation of instruction, lack of facilities such as libraries, media centres, and support materials contributes to low achievement of gifted pupils. Furthermore, the findings show that pupils were challenged and motivated with the MEP to the extent that they were engaged to think divergently and applied their metacognitive skills in finding solutions to mathematical problems. Therefore, the findings of this study could have significant implications for the future direction of gifted primary school education as well as teacher education. This study has made a significant contribution to the existing body of knowledge for implementing an enriched advanced level curriculum using SRL strategies for mathematically gifted pupils in the mainstream of primary school education.
- Full Text:
- Date Issued: 2017
Simulation and visualization platform integrated under hardware control systems for a reconfigurable process control
- Zata, Ngonidzashe Munyaradzi, Fernandes, John Manuel
- Authors: Zata, Ngonidzashe Munyaradzi , Fernandes, John Manuel
- Date: 2017
- Subjects: Mechatronics -- Students Engineering students User interfaces (Computer systems)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/13349 , vital:27177
- Description: Simulation and visualization platform integrated under hardware control systems for a reconfigurable process control.
- Full Text:
- Date Issued: 2017
- Authors: Zata, Ngonidzashe Munyaradzi , Fernandes, John Manuel
- Date: 2017
- Subjects: Mechatronics -- Students Engineering students User interfaces (Computer systems)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/13349 , vital:27177
- Description: Simulation and visualization platform integrated under hardware control systems for a reconfigurable process control.
- Full Text:
- Date Issued: 2017
The retirement funding adequacy of black South Africans
- Authors: Zeka, Bomikazi
- Date: 2017
- Subjects: Retirement income -- South Africa -- Case studies South Africa -- Finance Finance, Personal
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13338 , vital:27176
- Description: Despite the importance of retirement planning, many South Africans have been documented as reaching retirement age without adequate retirement funding. A vast amount of research has been conducted on how proper retirement planning can be beneficial for individuals; however, there has been a lack of attention given to researching the retirement planning of black individuals in South Africa. Thus, the primary objective of this study was to identify, investigate and empirically test which factors influence retirement planning, and which aspects of retirement planning influence the retirement funding adequacy of black individuals. After a comprehensive literature review was undertaken on the factors influencing the retirement planning and retirement funding adequacy of individuals, the following independent variables were identified as influencing the mediating variable (Aspects of retirement planning) and the dependent variable (Retirement funding adequacy) in this study: • Financial literacy; • The role of the financial planner; • Family support structure; and • Health status. These independent variables were selected to construct a hypothesised model and research hypotheses, as they have been identified as the prominent factors that influence the retirement planning of black South Africans. Furthermore, these independent variables were used in determining whether they have an influence on the Aspects of retirement planning (incorporating Retirement provisions, Retirement attitudes and Retirement intentions) and, ultimately, improve the Retirement funding adequacy of individuals. In order to establish the influence of the aspects of retirement planning on the retirement funding adequacy of individuals, an empirical investigation was undertaken. A measuring instrument, in the form of a questionnaire, was compiled from secondary literature sources. The respondents were identified though a mixed sampling approach, whereby stratified sampling and convenience sampling were used to attain 441 usable questionnaires that were subjected to statistical analyses. Descriptive statistics, in the form of frequency distributions, were used to summarise Section A and Section B of the measuring instrument. The validity and reliability of the measuring instrument were confirmed by means of exploratory factor analyses (EFA), and Cronbach’s alpha coefficients were also calculated for this purpose. As a result of conducting the EFA, two independent variables (Family support structure and Health status) loaded together, and the factor was renamed accordingly. From the EFA, the independent variables that emerged were The role of the financial planner, Family, health, and financial well-being, and Financial literacy. Furthermore, the EFA revealed that three mediating variables emerged from the mediating variable Aspects of retirement planning. These three mediating variables were consequently named Retirement intentions, Retirement attitudes, and Retirement provisions. There were no eliminated variables in this study. Based on the results of the EFA, some of the definitions of the variables were adapted. Consequently, the hypothesised model and its research hypotheses were adapted to reflect the results of the EFA. The results of the Cronbach’s alphas calculated reported that all the measuring scales used in the questionnaire of the study were reliable. Furthermore, descriptive statistics were also calculated to summarise the sample data, and Pearson’s product moment correlations were calculated to establish the correlations between all the variables used in this study. A multiple regression analysis was used to investigate the influence of the various independent variables on the mediating variables and the dependent variable. Furthermore, structural equation modelling (SEM) was used as the main statistical procedure to test for mediation in the study. SEM was also used to assess and confirm the results of the multiple regression analyses. Based on the results of the multiple regression analyses and SEM, the hypothesised relationships of the study were accepted or rejected. Additionally, the results of SEM revealed that the revised model of the study displayed acceptable model fit. To conclude the empirical investigation, t-tests and an analysis of variance (ANOVA) tests were performed to assess whether the respondents’ perceptions of the variables used in the study differed as a result of the respondents’ demographic information. Furthermore, to establish significant differences between individual mean scores, post-hoc Tukey tests were calculated, and practical significance was assessed by calculating Cohen’s d values. The main empirical results of the study found that statistically significant relationships exist between the independent variables The role of the financial planner and Family, health, and financial well-being, and the mediating variable Retirement intentions. Furthermore, a significant relationship was found between the independent variable Financial literacy and the mediating variable Retirement attitudes. Other significant relationships were present between all the independent variables The role of the financial planner, Family, health, and financial well-being and Financial literacy, and the mediating variable Retirement provisions. The study also established statistically significant relationships between the mediating variables Retirement attitudes and Retirement provisions and the dependent variable Retirement funding adequacy. Statistically significant relationships were also present between the independent variables Family, health, and financial well-being and Financial literacy and the dependent variable Retirement funding adequacy. This study has added to the limited amount of academic literature in the field of retirement planning in South Africa. Through the hypothesised model developed in this study, a significant contribution has been made towards investigating the factors that influence the retirement planning and retirement funding adequacy of black individuals residing in South Africa. This study presents recommendations to black individuals on practical strategies that could help to improve their retirement planning and retirement funding adequacy. Furthermore, suggestions are presented to financial planners and financial institutions, in order to assist black individuals or potential clients to improve their retirement planning and to help ensure that individuals are financially independent when they reach retirement age. It is recommended that financial institutions provide financial products/services that will cater to black South Africans.
- Full Text:
- Date Issued: 2017
- Authors: Zeka, Bomikazi
- Date: 2017
- Subjects: Retirement income -- South Africa -- Case studies South Africa -- Finance Finance, Personal
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/13338 , vital:27176
- Description: Despite the importance of retirement planning, many South Africans have been documented as reaching retirement age without adequate retirement funding. A vast amount of research has been conducted on how proper retirement planning can be beneficial for individuals; however, there has been a lack of attention given to researching the retirement planning of black individuals in South Africa. Thus, the primary objective of this study was to identify, investigate and empirically test which factors influence retirement planning, and which aspects of retirement planning influence the retirement funding adequacy of black individuals. After a comprehensive literature review was undertaken on the factors influencing the retirement planning and retirement funding adequacy of individuals, the following independent variables were identified as influencing the mediating variable (Aspects of retirement planning) and the dependent variable (Retirement funding adequacy) in this study: • Financial literacy; • The role of the financial planner; • Family support structure; and • Health status. These independent variables were selected to construct a hypothesised model and research hypotheses, as they have been identified as the prominent factors that influence the retirement planning of black South Africans. Furthermore, these independent variables were used in determining whether they have an influence on the Aspects of retirement planning (incorporating Retirement provisions, Retirement attitudes and Retirement intentions) and, ultimately, improve the Retirement funding adequacy of individuals. In order to establish the influence of the aspects of retirement planning on the retirement funding adequacy of individuals, an empirical investigation was undertaken. A measuring instrument, in the form of a questionnaire, was compiled from secondary literature sources. The respondents were identified though a mixed sampling approach, whereby stratified sampling and convenience sampling were used to attain 441 usable questionnaires that were subjected to statistical analyses. Descriptive statistics, in the form of frequency distributions, were used to summarise Section A and Section B of the measuring instrument. The validity and reliability of the measuring instrument were confirmed by means of exploratory factor analyses (EFA), and Cronbach’s alpha coefficients were also calculated for this purpose. As a result of conducting the EFA, two independent variables (Family support structure and Health status) loaded together, and the factor was renamed accordingly. From the EFA, the independent variables that emerged were The role of the financial planner, Family, health, and financial well-being, and Financial literacy. Furthermore, the EFA revealed that three mediating variables emerged from the mediating variable Aspects of retirement planning. These three mediating variables were consequently named Retirement intentions, Retirement attitudes, and Retirement provisions. There were no eliminated variables in this study. Based on the results of the EFA, some of the definitions of the variables were adapted. Consequently, the hypothesised model and its research hypotheses were adapted to reflect the results of the EFA. The results of the Cronbach’s alphas calculated reported that all the measuring scales used in the questionnaire of the study were reliable. Furthermore, descriptive statistics were also calculated to summarise the sample data, and Pearson’s product moment correlations were calculated to establish the correlations between all the variables used in this study. A multiple regression analysis was used to investigate the influence of the various independent variables on the mediating variables and the dependent variable. Furthermore, structural equation modelling (SEM) was used as the main statistical procedure to test for mediation in the study. SEM was also used to assess and confirm the results of the multiple regression analyses. Based on the results of the multiple regression analyses and SEM, the hypothesised relationships of the study were accepted or rejected. Additionally, the results of SEM revealed that the revised model of the study displayed acceptable model fit. To conclude the empirical investigation, t-tests and an analysis of variance (ANOVA) tests were performed to assess whether the respondents’ perceptions of the variables used in the study differed as a result of the respondents’ demographic information. Furthermore, to establish significant differences between individual mean scores, post-hoc Tukey tests were calculated, and practical significance was assessed by calculating Cohen’s d values. The main empirical results of the study found that statistically significant relationships exist between the independent variables The role of the financial planner and Family, health, and financial well-being, and the mediating variable Retirement intentions. Furthermore, a significant relationship was found between the independent variable Financial literacy and the mediating variable Retirement attitudes. Other significant relationships were present between all the independent variables The role of the financial planner, Family, health, and financial well-being and Financial literacy, and the mediating variable Retirement provisions. The study also established statistically significant relationships between the mediating variables Retirement attitudes and Retirement provisions and the dependent variable Retirement funding adequacy. Statistically significant relationships were also present between the independent variables Family, health, and financial well-being and Financial literacy and the dependent variable Retirement funding adequacy. This study has added to the limited amount of academic literature in the field of retirement planning in South Africa. Through the hypothesised model developed in this study, a significant contribution has been made towards investigating the factors that influence the retirement planning and retirement funding adequacy of black individuals residing in South Africa. This study presents recommendations to black individuals on practical strategies that could help to improve their retirement planning and retirement funding adequacy. Furthermore, suggestions are presented to financial planners and financial institutions, in order to assist black individuals or potential clients to improve their retirement planning and to help ensure that individuals are financially independent when they reach retirement age. It is recommended that financial institutions provide financial products/services that will cater to black South Africans.
- Full Text:
- Date Issued: 2017
Examining teachers' role in the promotion of child-friendly environments in Zimbabwean secondary schools : implications for teacher professional development
- Authors: Zendah, Ketiwe
- Date: 2017
- Subjects: Education, Secondary -- Zimbabwe Teachers -- Professional relationships School management and organization -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/4937 , vital:28810
- Description: Hostile school environments are a cause of concern and a perennial international educational problem. The UNICEF’s Child-Friendly Schools (CFS) approach is an international intervention meant to safeguard learners against hostile school environments. The CFS approach mandates schools to offer learners environments and conditions that uphold children’s rights and enhance their development to full potential. The purpose of this mixed methods research study, employing a concurrent triangulation design, was to explore the role of teachers in the promotion of CFS environments. Holsti’s (1970) role theory formed the theoretical framework of this study. The research questions focused on teachers’ understanding of the CFS concept, support offered, strategies employed, challenges encountered, and the implications for teacher professional development. The data collection methods were questionnaires, in-depth interviews, and document analysis with school heads, teachers and learners in the seven government urban secondary schools in Mutare district of Manicaland province in Zimbabwe. Quantitative and qualitative data were independently analysed and merged at the interpretation stage through triangulation of results. Major findings reveal that teachers have poor understanding of the CFS concept, are offered moderate support, occasionally employ viable strategies, and are hindered by various factors in the process of promoting CFS environments. The study’s implications for teacher professional development are rooted in identifying sustainable approaches that adequately equip teachers with relevant information, skills and attitudes that ensure the promotion of CFS environments.
- Full Text:
- Date Issued: 2017
- Authors: Zendah, Ketiwe
- Date: 2017
- Subjects: Education, Secondary -- Zimbabwe Teachers -- Professional relationships School management and organization -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/4937 , vital:28810
- Description: Hostile school environments are a cause of concern and a perennial international educational problem. The UNICEF’s Child-Friendly Schools (CFS) approach is an international intervention meant to safeguard learners against hostile school environments. The CFS approach mandates schools to offer learners environments and conditions that uphold children’s rights and enhance their development to full potential. The purpose of this mixed methods research study, employing a concurrent triangulation design, was to explore the role of teachers in the promotion of CFS environments. Holsti’s (1970) role theory formed the theoretical framework of this study. The research questions focused on teachers’ understanding of the CFS concept, support offered, strategies employed, challenges encountered, and the implications for teacher professional development. The data collection methods were questionnaires, in-depth interviews, and document analysis with school heads, teachers and learners in the seven government urban secondary schools in Mutare district of Manicaland province in Zimbabwe. Quantitative and qualitative data were independently analysed and merged at the interpretation stage through triangulation of results. Major findings reveal that teachers have poor understanding of the CFS concept, are offered moderate support, occasionally employ viable strategies, and are hindered by various factors in the process of promoting CFS environments. The study’s implications for teacher professional development are rooted in identifying sustainable approaches that adequately equip teachers with relevant information, skills and attitudes that ensure the promotion of CFS environments.
- Full Text:
- Date Issued: 2017
Aza boron-pyridyl-isoindoline analogues
- Zhang, Hui, Wu, Yanping, Fan, Minhui, Xiao, Xuqiong, Mack, John, Kubheka, Gugu, Nyokong, Tebello, Lu, Hua
- Authors: Zhang, Hui , Wu, Yanping , Fan, Minhui , Xiao, Xuqiong , Mack, John , Kubheka, Gugu , Nyokong, Tebello , Lu, Hua
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/232912 , vital:50037 , xlink:href="https://doi.org/10.1039/C7NJ00707H"
- Description: Several aza boron-pyridyl-isoindoline analogues are synthesized through a facile and scale-up two step reaction using 1,2-naphthalenedicarbonitrile as a starting material. These analogues show broad envelopes of intense vibrational bands in the absorption spectra with moderate fluorescence quantum yields in solution and the solid-state. An analysis of the structure–property relationships is described based on X-ray crystallography, optical spectroscopy, and theoretical calculations.
- Full Text:
- Date Issued: 2017
- Authors: Zhang, Hui , Wu, Yanping , Fan, Minhui , Xiao, Xuqiong , Mack, John , Kubheka, Gugu , Nyokong, Tebello , Lu, Hua
- Date: 2017
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/232912 , vital:50037 , xlink:href="https://doi.org/10.1039/C7NJ00707H"
- Description: Several aza boron-pyridyl-isoindoline analogues are synthesized through a facile and scale-up two step reaction using 1,2-naphthalenedicarbonitrile as a starting material. These analogues show broad envelopes of intense vibrational bands in the absorption spectra with moderate fluorescence quantum yields in solution and the solid-state. An analysis of the structure–property relationships is described based on X-ray crystallography, optical spectroscopy, and theoretical calculations.
- Full Text:
- Date Issued: 2017
Trade, financial development and the economic growth nexus in South Africa
- Authors: Zhanje, Stephen
- Date: 2017
- Subjects: South Africa -- Economic conditions Economic development -- South Africa Finance -- Developing countries
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: http://hdl.handle.net/10948/13327 , vital:27175
- Description: South Africa is endowed with a well-developed and regulated financial system which compares favourably with those of other developed economies. Therefore the financial sector is intended to play a significant role in supporting the real economy, by enhancing trade and stimulating economic growth and development. Despite the existence of a stable, developed and well-regulated financial sector, the South African economy has experienced current account deficits for the past 10 years and economic growth rates have mostly trailed behind the targets prescribed by the socio-economic programs formulated and implemented since 1994. To solve the trade – financial development – economic growth nexus problem, most studies have focused on other countries while research studies on South Africa did not explicitly investigate the trade – financial development – economic growth triangle, the linkage which failed to yield the desired outcome for South Africa’s post 1994 era.Therefore, this study employs Cointegration Vector Autoregressive (CVAR) methodology to investigate the relationship between trade, financial development and economic growth in South Africa. The unit root test revealed that the variables considered in the study are I(1) variables and the Johansen cointegration test justified the existence of a long run relationship among the variables. The empirical findings indicate that imports and financial development are positively related to exports whilst economic growth is negatively related to exports. The VAR Ganger causality test has shown that there is a uni-directional causality running from financial development to economic growth, exports and imports and that imports Granger cause exports. The results of this study form the basis for further investigation into the non-performance of exports and economic growth in the nexus. The research study opens up new policy insights by suggesting that financial policy can be used to be more supportive to the production of intermediate and finished products destined for both international and domestic markets.
- Full Text:
- Date Issued: 2017
- Authors: Zhanje, Stephen
- Date: 2017
- Subjects: South Africa -- Economic conditions Economic development -- South Africa Finance -- Developing countries
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: http://hdl.handle.net/10948/13327 , vital:27175
- Description: South Africa is endowed with a well-developed and regulated financial system which compares favourably with those of other developed economies. Therefore the financial sector is intended to play a significant role in supporting the real economy, by enhancing trade and stimulating economic growth and development. Despite the existence of a stable, developed and well-regulated financial sector, the South African economy has experienced current account deficits for the past 10 years and economic growth rates have mostly trailed behind the targets prescribed by the socio-economic programs formulated and implemented since 1994. To solve the trade – financial development – economic growth nexus problem, most studies have focused on other countries while research studies on South Africa did not explicitly investigate the trade – financial development – economic growth triangle, the linkage which failed to yield the desired outcome for South Africa’s post 1994 era.Therefore, this study employs Cointegration Vector Autoregressive (CVAR) methodology to investigate the relationship between trade, financial development and economic growth in South Africa. The unit root test revealed that the variables considered in the study are I(1) variables and the Johansen cointegration test justified the existence of a long run relationship among the variables. The empirical findings indicate that imports and financial development are positively related to exports whilst economic growth is negatively related to exports. The VAR Ganger causality test has shown that there is a uni-directional causality running from financial development to economic growth, exports and imports and that imports Granger cause exports. The results of this study form the basis for further investigation into the non-performance of exports and economic growth in the nexus. The research study opens up new policy insights by suggesting that financial policy can be used to be more supportive to the production of intermediate and finished products destined for both international and domestic markets.
- Full Text:
- Date Issued: 2017
Characterization of the distribution of platinum group elements in sulphide ores within the Merensky Reef at Modikwa and Two Rivers Platinum Mines, Eastern Bushveld Complex, South Africa
- Authors: Zilibokwe, Nosibulelo Julie
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/7938 , vital:21326
- Description: The distribution of the platinum group element (PGE), in the Merensky Reef was characterized by, first determining the occurrence of the platinum group minerals (PGM), then by establishing the PGE concentration in the base metal sulphides (BMS) associated with the PGE mineralization in the Merensky Reef from selected borehole intersections, at the Two Rivers (TRP) and Modikwa Platinum Mines in the Eastern Bushveld Complex. A mineral liberation analyser (MLA) was then used to identify the PGM phases; their silicate and base metal associations; and their grain size distribution. Electron microprobe quantitative analysis and mapping were then used to determine the compositional variation of the PGM and the PGE elemental distribution in the BMS, respectively. The study showed that the BMS including pyrrhotite, pentlandite, and chalcopyrite were the principal sulphides, where pyrrhotite was most prominent with minor quantities of pyrite. Orthopyroxene, clinopyroxene and plagioclase were the most abundant primary silicate minerals identified, while secondary silicates identified included talc, serpentine and amphibole. Platinum group minerals showed three distinct groups with respect to the mineralogical association with the PGE; (i) BMS association; (ii) chromite association; and (iii) silicate association. Of the BMS, chalcopyrite showed the most dominant association with the PGMs. All samples from both mines exhibited a wide range of PGMs, including maslovite, braggite, cooperate, laurite and PGE alloys such as ferroplatinum as well as other unidentified platinum and palladium sulphides, arsenides and bismuthides, while gold was present as electrum. The PGMs ranged in size from less than a micron to about 125 microns with an average of 20 microns. The close association of PGM with BMS along the margins of sulphides indicates that the PGMs were derived from the sulphide melt. PGE distribution in the sulphides at Modikwa showed pentlandite contained the highest concentrations of palladium (up to 379 ppm) and chalcopyrite hosting the highest rhodium concentrations (up to 793 ppm). Samples from Two Rivers revealed pentlandite as the principal host to both palladium and rhodium, with concentrations reaching up to 695 and 930 ppm, respectively. Magnetite at both Modikwa and Two Rivers showed significant rhodium content, reaching up to 982 and 930 ppm, respectively. The pyrrhotite compared to other sulphides contained all the elements found in the platinum group (PPGE), namely, platinum, palladium and rhodium, with all the platinum identified found in the pyrrhotite. The concentrations for the iridium group (IPGE) namely, iridium, osmium, and ruthenium were below the detection limit. The PGE mineralization in the stratigraphy varied within each mine. The mineralization revealed top loading in the central sector (Modikwa) and bottom loading in the southern sector (Two Rivers). The sequence of the Merensky Reef at the two sectors of the Eastern Bushveld Complex showed a remarkable similarity in their mineralogy suggesting that these two sectors were formed from the same liquid or formed simultaneously within a single magma chamber; however the PGE distribution within the stratigraphy may have been controlled by the presence of cumulate sulphides.
- Full Text:
- Date Issued: 2017
- Authors: Zilibokwe, Nosibulelo Julie
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/7938 , vital:21326
- Description: The distribution of the platinum group element (PGE), in the Merensky Reef was characterized by, first determining the occurrence of the platinum group minerals (PGM), then by establishing the PGE concentration in the base metal sulphides (BMS) associated with the PGE mineralization in the Merensky Reef from selected borehole intersections, at the Two Rivers (TRP) and Modikwa Platinum Mines in the Eastern Bushveld Complex. A mineral liberation analyser (MLA) was then used to identify the PGM phases; their silicate and base metal associations; and their grain size distribution. Electron microprobe quantitative analysis and mapping were then used to determine the compositional variation of the PGM and the PGE elemental distribution in the BMS, respectively. The study showed that the BMS including pyrrhotite, pentlandite, and chalcopyrite were the principal sulphides, where pyrrhotite was most prominent with minor quantities of pyrite. Orthopyroxene, clinopyroxene and plagioclase were the most abundant primary silicate minerals identified, while secondary silicates identified included talc, serpentine and amphibole. Platinum group minerals showed three distinct groups with respect to the mineralogical association with the PGE; (i) BMS association; (ii) chromite association; and (iii) silicate association. Of the BMS, chalcopyrite showed the most dominant association with the PGMs. All samples from both mines exhibited a wide range of PGMs, including maslovite, braggite, cooperate, laurite and PGE alloys such as ferroplatinum as well as other unidentified platinum and palladium sulphides, arsenides and bismuthides, while gold was present as electrum. The PGMs ranged in size from less than a micron to about 125 microns with an average of 20 microns. The close association of PGM with BMS along the margins of sulphides indicates that the PGMs were derived from the sulphide melt. PGE distribution in the sulphides at Modikwa showed pentlandite contained the highest concentrations of palladium (up to 379 ppm) and chalcopyrite hosting the highest rhodium concentrations (up to 793 ppm). Samples from Two Rivers revealed pentlandite as the principal host to both palladium and rhodium, with concentrations reaching up to 695 and 930 ppm, respectively. Magnetite at both Modikwa and Two Rivers showed significant rhodium content, reaching up to 982 and 930 ppm, respectively. The pyrrhotite compared to other sulphides contained all the elements found in the platinum group (PPGE), namely, platinum, palladium and rhodium, with all the platinum identified found in the pyrrhotite. The concentrations for the iridium group (IPGE) namely, iridium, osmium, and ruthenium were below the detection limit. The PGE mineralization in the stratigraphy varied within each mine. The mineralization revealed top loading in the central sector (Modikwa) and bottom loading in the southern sector (Two Rivers). The sequence of the Merensky Reef at the two sectors of the Eastern Bushveld Complex showed a remarkable similarity in their mineralogy suggesting that these two sectors were formed from the same liquid or formed simultaneously within a single magma chamber; however the PGE distribution within the stratigraphy may have been controlled by the presence of cumulate sulphides.
- Full Text:
- Date Issued: 2017
Exploring the importance of the mother/child relationship during maternal incarceration : a case study at Worcester female correctional centre
- Authors: Zill, Lizelle Jessie
- Date: 2017
- Subjects: Mother and child Children of women prisoners--Effect of imprisonment on Mother-Child Relations
- Language: English
- Type: Thesis , Masters , Social Work
- Identifier: http://hdl.handle.net/10353/16058 , vital:40660
- Description: The intention of this research was to explore and discuss the importance of the mother/child relationship during maternal incarceration for aiding a successful reunificationupon release. The Department of Correctional Services is committed to providing a needs-based approach to all offenders including female offenders, who are recognised as special category offenders. The study made use of a qualitative approach and the research design was based on a case study. Data was gathered by means of in-depth interviews with nineteen participants at the Worcester Female Correctional Centre. A literature study was conducted on the importance of strengthening and supporting the mother/child relationship during maternal incarceration, and the challenges experienced in maintaining the mother/child relationship. Thereafter, an empirical exploration was done and the results were purposefully processed and analysed. Through processing and analysing the results, the researcher was able to derive certain conclusions and make recommendations, which are presented in Chapter Five of this thesis. The most important conclusion resulting from the research study is the importance of the maintenance of the mother/child relationship during maternal incarceration. The study made various recommendations that the Department of Correctional Services can utilise to improve its services to female offenders, especially those with children.
- Full Text:
- Date Issued: 2017
- Authors: Zill, Lizelle Jessie
- Date: 2017
- Subjects: Mother and child Children of women prisoners--Effect of imprisonment on Mother-Child Relations
- Language: English
- Type: Thesis , Masters , Social Work
- Identifier: http://hdl.handle.net/10353/16058 , vital:40660
- Description: The intention of this research was to explore and discuss the importance of the mother/child relationship during maternal incarceration for aiding a successful reunificationupon release. The Department of Correctional Services is committed to providing a needs-based approach to all offenders including female offenders, who are recognised as special category offenders. The study made use of a qualitative approach and the research design was based on a case study. Data was gathered by means of in-depth interviews with nineteen participants at the Worcester Female Correctional Centre. A literature study was conducted on the importance of strengthening and supporting the mother/child relationship during maternal incarceration, and the challenges experienced in maintaining the mother/child relationship. Thereafter, an empirical exploration was done and the results were purposefully processed and analysed. Through processing and analysing the results, the researcher was able to derive certain conclusions and make recommendations, which are presented in Chapter Five of this thesis. The most important conclusion resulting from the research study is the importance of the maintenance of the mother/child relationship during maternal incarceration. The study made various recommendations that the Department of Correctional Services can utilise to improve its services to female offenders, especially those with children.
- Full Text:
- Date Issued: 2017
The impact of family preservation and family reunification services on families in South Africa: a case study of Amathole District Municipality in the Eastern Cape Province
- Authors: Zimba, Zibonele France
- Date: 2017
- Subjects: Family services Dysfunctional families -- South Africa -- Eastern Cape Family social work -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , Degree
- Identifier: http://hdl.handle.net/10353/3088 , vital:28260
- Description: Families in communities remain vulnerable and, apart from poverty, face a host of other crises and challenges on a daily basis. Amongst the challenges that families face, children are affected most. Services targeting families with very young children therefore are imperative. This study was aimed at exploring the impact of family preservation and family reunification services on families in South Africa, with a focus on the Eastern Cape Province. To answer the research questions of this study, the research adopted a mixed methods design known as methodological triangulation. The study incorporated two sets of participants, Social Workers and heads of families that benefit from family preservation and family reunification services. The total sample for the study included 260 participants; 220 of the participants were heads of families and 40 of the participants were Social Workers. Questionnaires were administered to 200 heads of families and 20 Social Workers selected by means of the random sampling technique. In addition, 20 heads of families and 20 Social Workers who participated in in-depth interviews were purposively selected. The quantitative data were analysed by means of the Statistical Package for the Social Sciences (SPSS) and qualitative data were categorised with the use of themes and subthemes
- Full Text:
- Date Issued: 2017
- Authors: Zimba, Zibonele France
- Date: 2017
- Subjects: Family services Dysfunctional families -- South Africa -- Eastern Cape Family social work -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , Degree
- Identifier: http://hdl.handle.net/10353/3088 , vital:28260
- Description: Families in communities remain vulnerable and, apart from poverty, face a host of other crises and challenges on a daily basis. Amongst the challenges that families face, children are affected most. Services targeting families with very young children therefore are imperative. This study was aimed at exploring the impact of family preservation and family reunification services on families in South Africa, with a focus on the Eastern Cape Province. To answer the research questions of this study, the research adopted a mixed methods design known as methodological triangulation. The study incorporated two sets of participants, Social Workers and heads of families that benefit from family preservation and family reunification services. The total sample for the study included 260 participants; 220 of the participants were heads of families and 40 of the participants were Social Workers. Questionnaires were administered to 200 heads of families and 20 Social Workers selected by means of the random sampling technique. In addition, 20 heads of families and 20 Social Workers who participated in in-depth interviews were purposively selected. The quantitative data were analysed by means of the Statistical Package for the Social Sciences (SPSS) and qualitative data were categorised with the use of themes and subthemes
- Full Text:
- Date Issued: 2017
Determinants of household debt in South Africa
- Authors: Zimucha, Tinashe M
- Date: 2017
- Subjects: Consumer credit -- South Africa Finance, Personal -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/7967 , vital:31325
- Description: Significant changes have occurred in South Africa during the past decades in household saving and borrowing behaviour. The rapid increase in South Africa’s household debt over the last twenty years has been an international phenomenon. In most countries, household debt increased from the 1990s until the crisis of 2007–2008 before stabilising due to a recession and deleveraging. The study used an ARDL model to investigate the determinants of household debt in South Africa. Pairwise regression is used to select the most relevant variables affecting household regression in the country. The results of the study showed that consumer confidence, the bond market index and the vulnerability index have a positive effect on household debt. As consumers' faith in the performance of the economy increases, household debt also increases as expected, reflecting consumers' belief in increased future wealth. The positive influence of the vulnerability index suggests that households tend to resort to borrowing to smooth consumption when incomes and other related factors decline. It is recommended that national policy should tighten regulations around access to unsecured credit to minimise the stress on already vulnerable households.
- Full Text:
- Date Issued: 2017
- Authors: Zimucha, Tinashe M
- Date: 2017
- Subjects: Consumer credit -- South Africa Finance, Personal -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/7967 , vital:31325
- Description: Significant changes have occurred in South Africa during the past decades in household saving and borrowing behaviour. The rapid increase in South Africa’s household debt over the last twenty years has been an international phenomenon. In most countries, household debt increased from the 1990s until the crisis of 2007–2008 before stabilising due to a recession and deleveraging. The study used an ARDL model to investigate the determinants of household debt in South Africa. Pairwise regression is used to select the most relevant variables affecting household regression in the country. The results of the study showed that consumer confidence, the bond market index and the vulnerability index have a positive effect on household debt. As consumers' faith in the performance of the economy increases, household debt also increases as expected, reflecting consumers' belief in increased future wealth. The positive influence of the vulnerability index suggests that households tend to resort to borrowing to smooth consumption when incomes and other related factors decline. It is recommended that national policy should tighten regulations around access to unsecured credit to minimise the stress on already vulnerable households.
- Full Text:
- Date Issued: 2017
Information and propaganda in the federation of Rhodesia and Nyasaland with special reference to print and radio propaganda for Africans, 1953-1963
- Authors: Zimudzi, Tapiwa Brown
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/6957 , vital:21204
- Description: This thesis contributes to the history of the information and propaganda policy and practice of the government of the Federation of Rhodesia and Nyasaland by examining this government's pro-Federation print and radio propaganda for Africans in the Federation. Using a multi-theoretical approach, it analyses the character of this propaganda, highlighting its main methods and themes as well as the policy considerations, plus political and economic circumstances that gave rise to it. It also discusses how Africans in the Federation reacted to this propaganda and assesses its effectiveness in gaining the support of these Africans for Federation and the policies of the Federal government. The thesis argues that Federal government propaganda aimed at gaining the support of Africans for Federation was predominantly panic-driven propaganda and was the product of an information panic that lay at the heart of the very idea of Federation itself. This information panic arose out of the Federal government's belated recognition of the strength of African opposition to Federation and of how this opposition seriously threatened the continued survival of the Federation. It is also argued that this panic-driven pro-Federation propaganda elicited largely hostile reactions from the majority of Africans in the Federation and failed to persuade them to support Federation.
- Full Text:
- Date Issued: 2017
- Authors: Zimudzi, Tapiwa Brown
- Date: 2017
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/6957 , vital:21204
- Description: This thesis contributes to the history of the information and propaganda policy and practice of the government of the Federation of Rhodesia and Nyasaland by examining this government's pro-Federation print and radio propaganda for Africans in the Federation. Using a multi-theoretical approach, it analyses the character of this propaganda, highlighting its main methods and themes as well as the policy considerations, plus political and economic circumstances that gave rise to it. It also discusses how Africans in the Federation reacted to this propaganda and assesses its effectiveness in gaining the support of these Africans for Federation and the policies of the Federal government. The thesis argues that Federal government propaganda aimed at gaining the support of Africans for Federation was predominantly panic-driven propaganda and was the product of an information panic that lay at the heart of the very idea of Federation itself. This information panic arose out of the Federal government's belated recognition of the strength of African opposition to Federation and of how this opposition seriously threatened the continued survival of the Federation. It is also argued that this panic-driven pro-Federation propaganda elicited largely hostile reactions from the majority of Africans in the Federation and failed to persuade them to support Federation.
- Full Text:
- Date Issued: 2017